Finding the Fourth Proportional to 250,106.50, 345,114.83 and 142,670.12

Step by Step Solution

1. Step 1: Write the proportion equation
   250,106.50 : 345,114.83 = 142,670.12 : x
2. Step 2: Convert to fraction form
   250,106.50/345,114.83 = 142,670.12/x
3. Step 3: Cross multiply
   250,106.50x = 345,114.83 × 142,670.12
4. Step 4: Simplify right side
   250,106.50x = 49,237,573,496.53
5. Step 5: Solve for x
   x = 49,237,573,496.53/250,106.50
6. Step 6: Final answer
   x = 196,866.43